IEC 62990-1:2019/Cor 1:2019

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The IEC 62990-1:2019/Cor 1:2019 standard, which is a technical corrigendum, specifies requirements for the design, function, and performance of gas detectors used in workplace atmospheres. It also outlines the test methods applicable to portable, transportable, and fixed equipment. The "Cor 1:2019" designation indicates that it's a technical corrigendum issued in 2019, correcting errors or ambiguities in the original standard.